fisiologi kardivaskuler
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kkkTRANSCRIPT
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FISIOLOGI KARDIVASKULER
AFRIWRDI
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LINGKUP PEMBAHASAN
• JANTUNG SEBAGAI POMPA– FISIOLOGI OTOT JANTUNG– SIKLUS JANTUNG– RANGSANGAN RITMIK OTOT JANTUNG– EKG
• SIRKULASI– TINJAUAN SIRKULASI– DISTENSIBILITAS VASKULER– MIKROSIRKULASI– PENGATURAN LOKAL ALIRAN DARAH– PENGATURAN SARAF– PERAN GINJAL DALAM PENGATURAN SIRKULASI– PENGATURAN CURAH JANTUNG
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FISIOLOGI OTOT JANTUNG
• ANATOMI FISIOLOGI OTOT JANTUNG– SEBAGAI SATU SINSIUM– POTENSIAL AKSI : -85 - -90 MILIVOLT– KONDUKSI : 0,3-0,5 METER/DETIK– PERIODE REFRAKTER
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SIKLUS JANTUNG
• PERIODE– SISTOLE– DIASTOLE
• PEMOMPAAN– ATRIUM– VENTRIKEL
• KATUP JANTUNG : CEGAH DARAH BALIK
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RANGSANGAN RITMIK OTOT JANTUNG
• DIRANGSANG– NODUS SINUS– AV NODUS– SERABUT PURKINYE
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EKG
• PENYEBARAN ALIRAN LISTRIK
• PRISTIWA– DEPOLARISASI – REPOLARISASI
• SADAPAN EKG– BIPOLAR– PREKORDIAL– UNIPOLAR
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TINJAUAN SIRKULASI
• SIFAT FISIK SIRKULASI– ARTERI, ARTERIOL, KEAPILER– KAPILER, VENULE, VENA
• TEKANAN DARAH – SISTOLIK– DIASTOLIK
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MIKROSIRKULASI
• MIKROANATOMI
• VASOMOTION
• PERTUKARAN ZAT
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SISTEM LIMFATIK
• JALUR TAMBAHAN CAIRAN KE SIRKULASI
• PEMBENTUKAN
• KATUP LIMFE CEGA H KEMBALI ALIRAN
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PENGATURAN LOKAL ALIRAN DARAH
• KEBUTUHAN JARINGAN– OKSIGEN– MAKANAN– KARONDIOKSIDA– ION HIDROGEN– HORMON
• MEKANISME– AKUT
• VASODILATOR• KEBUTUHAN OKSIGEN
– JANGKA PANJANG
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PENGATURAN SARAF
• SISTEM SARAF OTOTNOM– SIMPATIS– PARASIMPATIS
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PERAN GINJAL DALAM PENGATURAN SIRKULASI
• SISTEM RENIN ANGIOTENSIN
• PENGATURAN VOLUME CAIRAN
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PENGATURAN CURAH JANTUNG
• JUMLAH DARAH YANG DIKELUARKAN KE AORTA DALAM SATU MENIT
• DITENTUKAN – KECEPATAN KONTRAKSI– VOLUME SEKUNCUP
• TAHANA PERIFER• KONTRAKSI OTOT JANTUNG
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